Answer: Tybalt is hot-headed and enjoys fighting.
This excerpt demonstrates that Tybalt is hot-headed, and that he enjoys fighting. Benvolio tells us that Tybalt was "fiery" and that by the time he approached them, he already had his sword prepared. He started challenging Benvolio while swinging his sword around. All of this shows that Tybalt is not scared or reluctant to fight. In fact, he seems to enjoy it, as he seems to be willing and enthusiastic.